This week’s show is one piece: Glenn Gould’s audio documentary “The Idea of North,” collected on Glenn Gould: The Radio Artist. It’s one of a series he created for the CBC and one of three focusing on the theme of extreme isolation. More info about the doc, including what I assume is the hilarious CBC promo image (there was apparently also a film). Check this marvelous clip of Gould explaining the art of composing for multiple spoken voices. It notes a particular debt to the “undulating dives and swerves” of Webern before switching to neat footage of Gould performing some Webern variations.